examples/l2fwd-keepalive: add sample application
Modified version of l2fwd to demonstrate keep-alive functionality. Signed-off-by: Remy Horton <remy.horton@intel.com> Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com> Signed-off-by: John J Browne <john.j.browne@intel.com>
This commit is contained in:
parent
75583b0d1e
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e64833f227
@ -112,6 +112,8 @@ Keep alive
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M: Remy Horton <remy.horton@intel.com>
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F: lib/librte_eal/common/include/rte_keepalive.h
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F: lib/librte_eal/common/rte_keepalive.c
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F: examples/l2fwd-keepalive/
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F: doc/guides/sample_app_ug/keep_alive.rst
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Secondary process
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K: RTE_PROC_
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@ -15,7 +15,7 @@ New Features
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New function rte_ring_free() allows the user to free a ring
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if it was created with rte_ring_create().
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* **Added keepalive support to EAL.**
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* **Added keepalive support to EAL and example application.**
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* **Added ethdev API to support IEEE1588.**
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@ -49,6 +49,7 @@ Sample Applications User Guide
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ipv4_multicast
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ip_reassembly
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kernel_nic_interface
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keep_alive
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l2_forward_job_stats
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l2_forward_real_virtual
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l3_forward
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191
doc/guides/sample_app_ug/keep_alive.rst
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191
doc/guides/sample_app_ug/keep_alive.rst
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@ -0,0 +1,191 @@
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.. BSD LICENSE
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Copyright(c) 2015 Intel Corporation. All rights reserved.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Keep Alive Sample Application
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=============================
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The Keep Alive application is a simple example of a
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heartbeat/watchdog for packet processing cores. It demonstrates how
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to detect 'failed' DPDK cores and notify a fault management entity
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of this failure. Its purpose is to ensure the failure of the core
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does not result in a fault that is not detectable by a management
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entity.
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Overview
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--------
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The application demonstrates how to protect against 'silent outages'
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on packet processing cores. A Keep Alive Monitor Agent Core (master)
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monitors the state of packet processing cores (worker cores) by
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dispatching pings at a regular time interval (default is 5ms) and
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monitoring the state of the cores. Cores states are: Alive, MIA, Dead
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or Buried. MIA indicates a missed ping, and Dead indicates two missed
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pings within the specified time interval. When a core is Dead, a
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callback function is invoked to restart the packet processing core;
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A real life application might use this callback function to notify a
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higher level fault management entity of the core failure in order to
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take the appropriate corrective action.
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Note: Only the worker cores are monitored. A local (on the host) mechanism
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or agent to supervise the Keep Alive Monitor Agent Core DPDK core is required
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to detect its failure.
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Note: This application is based on the L2 forwarding application. As
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such, the initialization and run-time paths are very similar to those
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of the L2 forwarding application.
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Compiling the Application
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-------------------------
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To compile the application:
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#. Go to the sample application directory:
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.. code-block:: console
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export RTE_SDK=/path/to/rte_sdk cd ${RTE_SDK}/examples/keep_alive
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#. Set the target (a default target is used if not specified). For example:
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.. code-block:: console
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export RTE_TARGET=x86_64-native-linuxapp-gcc
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See the *DPDK Getting Started Guide* for possible RTE_TARGET values.
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#. Build the application:
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.. code-block:: console
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make
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Running the Application
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-----------------------
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The application has a number of command line options:
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.. code-block:: console
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./build/l2fwd-keepalive [EAL options] \
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-- -p PORTMASK [-q NQ] [-K PERIOD] [-T PERIOD]
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where,
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* ``p PORTMASK``: A hexadecimal bitmask of the ports to configure
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* ``q NQ``: A number of queues (=ports) per lcore (default is 1)
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* ``K PERIOD``: Heartbeat check period in ms(5ms default; 86400 max)
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* ``T PERIOD``: statistics will be refreshed each PERIOD seconds (0 to
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disable, 10 default, 86400 maximum).
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To run the application in linuxapp environment with 4 lcores, 16 ports
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8 RX queues per lcore and a ping interval of 10ms, issue the command:
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.. code-block:: console
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./build/l2fwd-keepalive -c f -n 4 -- -q 8 -p ffff -K 10
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Refer to the *DPDK Getting Started Guide* for general information on
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running applications and the Environment Abstraction Layer (EAL)
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options.
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Explanation
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-----------
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The following sections provide some explanation of the The
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Keep-Alive/'Liveliness' conceptual scheme. As mentioned in the
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overview section, the initialization and run-time paths are very
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similar to those of the L2 forwarding application (see Chapter 9
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"L2 Forwarding Sample Application (in Real and Virtualized
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Environments)" for more information).
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The Keep-Alive/'Liveliness' conceptual scheme:
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* A Keep- Alive Agent Runs every N Milliseconds.
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* DPDK Cores respond to the keep-alive agent.
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* If keep-alive agent detects time-outs, it notifies the
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fault management entity through a callback function.
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The following sections provide some explanation of the code aspects
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that are specific to the Keep Alive sample application.
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The heartbeat functionality is initialized with a struct
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rte_heartbeat and the callback function to invoke in the
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case of a timeout.
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.. code-block:: c
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rte_global_keepalive_info = rte_keepalive_create(&dead_core, NULL);
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if (rte_global_hbeat_info == NULL)
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rte_exit(EXIT_FAILURE, "keepalive_create() failed");
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The function that issues the pings hbeat_dispatch_pings()
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is configured to run every check_period milliseconds.
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.. code-block:: c
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if (rte_timer_reset(&hb_timer,
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(check_period * rte_get_timer_hz()) / 1000,
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PERIODICAL,
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rte_lcore_id(),
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&hbeat_dispatch_pings, rte_global_keepalive_info
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) != 0 )
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rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
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The rest of the initialization and run-time path follows
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the same paths as the the L2 forwarding application. The only
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addition to the main processing loop is the mark alive
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functionality and the example random failures.
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.. code-block:: c
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rte_keepalive_mark_alive(&rte_global_hbeat_info);
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cur_tsc = rte_rdtsc();
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/* Die randomly within 7 secs for demo purposes.. */
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if (cur_tsc - tsc_initial > tsc_lifetime)
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break;
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The rte_keepalive_mark_alive function simply sets the core state to alive.
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.. code-block:: c
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static inline void
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rte_keepalive_mark_alive(struct rte_heartbeat *keepcfg)
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{
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keepcfg->state_flags[rte_lcore_id()] = 1;
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}
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@ -53,6 +53,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_KNI) += kni
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DIRS-y += l2fwd
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DIRS-$(CONFIG_RTE_LIBRTE_IVSHMEM) += l2fwd-ivshmem
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DIRS-$(CONFIG_RTE_LIBRTE_JOBSTATS) += l2fwd-jobstats
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DIRS-y += l2fwd-keepalive
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DIRS-y += l3fwd
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DIRS-$(CONFIG_RTE_LIBRTE_ACL) += l3fwd-acl
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DIRS-$(CONFIG_RTE_LIBRTE_POWER) += l3fwd-power
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50
examples/l2fwd-keepalive/Makefile
Normal file
50
examples/l2fwd-keepalive/Makefile
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@ -0,0 +1,50 @@
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# BSD LICENSE
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#
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# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Intel Corporation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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ifeq ($(RTE_SDK),)
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$(error "Please define RTE_SDK environment variable")
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endif
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# Default target, can be overridden by command line or environment
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RTE_TARGET ?= x86_64-native-linuxapp-gcc
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include $(RTE_SDK)/mk/rte.vars.mk
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# binary name
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APP = l2fwd-keepalive
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# all source are stored in SRCS-y
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SRCS-y := main.c
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CFLAGS += -O3
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CFLAGS += $(WERROR_FLAGS)
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include $(RTE_SDK)/mk/rte.extapp.mk
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examples/l2fwd-keepalive/main.c
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806
examples/l2fwd-keepalive/main.c
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@ -0,0 +1,806 @@
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/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <inttypes.h>
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <netinet/in.h>
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#include <setjmp.h>
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#include <stdarg.h>
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#include <ctype.h>
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#include <errno.h>
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#include <getopt.h>
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#include <rte_common.h>
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#include <rte_log.h>
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#include <rte_memory.h>
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#include <rte_memcpy.h>
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#include <rte_memzone.h>
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#include <rte_eal.h>
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#include <rte_per_lcore.h>
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#include <rte_launch.h>
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#include <rte_atomic.h>
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#include <rte_cycles.h>
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#include <rte_prefetch.h>
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#include <rte_lcore.h>
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#include <rte_per_lcore.h>
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#include <rte_branch_prediction.h>
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#include <rte_interrupts.h>
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#include <rte_pci.h>
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#include <rte_random.h>
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#include <rte_debug.h>
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#include <rte_ether.h>
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#include <rte_ethdev.h>
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#include <rte_ring.h>
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#include <rte_mempool.h>
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#include <rte_mbuf.h>
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#include <rte_timer.h>
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#include <rte_keepalive.h>
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#define RTE_LOGTYPE_L2FWD RTE_LOGTYPE_USER1
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#define NB_MBUF 8192
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#define MAX_PKT_BURST 32
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#define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
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/*
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* Configurable number of RX/TX ring descriptors
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*/
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#define RTE_TEST_RX_DESC_DEFAULT 128
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#define RTE_TEST_TX_DESC_DEFAULT 512
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static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
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static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
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/* ethernet addresses of ports */
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static struct ether_addr l2fwd_ports_eth_addr[RTE_MAX_ETHPORTS];
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/* mask of enabled ports */
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static uint32_t l2fwd_enabled_port_mask;
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/* list of enabled ports */
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static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
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static unsigned int l2fwd_rx_queue_per_lcore = 1;
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struct mbuf_table {
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unsigned len;
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struct rte_mbuf *m_table[MAX_PKT_BURST];
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};
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#define MAX_RX_QUEUE_PER_LCORE 16
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#define MAX_TX_QUEUE_PER_PORT 16
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struct lcore_queue_conf {
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unsigned n_rx_port;
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unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
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struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
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} __rte_cache_aligned;
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struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
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static const struct rte_eth_conf port_conf = {
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.rxmode = {
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.split_hdr_size = 0,
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.header_split = 0, /**< Header Split disabled */
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.hw_ip_checksum = 0, /**< IP checksum offload disabled */
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.hw_vlan_filter = 0, /**< VLAN filtering disabled */
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.jumbo_frame = 0, /**< Jumbo Frame Support disabled */
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.hw_strip_crc = 0, /**< CRC stripped by hardware */
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},
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.txmode = {
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.mq_mode = ETH_MQ_TX_NONE,
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},
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};
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struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
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/* Per-port statistics struct */
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struct l2fwd_port_statistics {
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uint64_t tx;
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uint64_t rx;
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uint64_t dropped;
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} __rte_cache_aligned;
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struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
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/* A tsc-based timer responsible for triggering statistics printout */
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#define TIMER_MILLISECOND 1
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#define MAX_TIMER_PERIOD 86400 /* 1 day max */
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static int64_t timer_period = 10 * TIMER_MILLISECOND * 1000; /* 10 seconds */
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static int64_t check_period = 5; /* default check cycle is 5ms */
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/* Keepalive structure */
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struct rte_keepalive *rte_global_keepalive_info;
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/* Print out statistics on packets dropped */
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static void
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print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
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__attribute__((unused)) void *ptr_data)
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{
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uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
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unsigned portid;
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total_packets_dropped = 0;
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total_packets_tx = 0;
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total_packets_rx = 0;
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const char clr[] = { 27, '[', '2', 'J', '\0' };
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const char topLeft[] = { 27, '[', '1', ';', '1', 'H', '\0' };
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/* Clear screen and move to top left */
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printf("%s%s", clr, topLeft);
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printf("\nPort statistics ====================================");
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for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
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/* skip disabled ports */
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if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
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continue;
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||||
printf("\nStatistics for port %u ------------------------------"
|
||||
"\nPackets sent: %24"PRIu64
|
||||
"\nPackets received: %20"PRIu64
|
||||
"\nPackets dropped: %21"PRIu64,
|
||||
portid,
|
||||
port_statistics[portid].tx,
|
||||
port_statistics[portid].rx,
|
||||
port_statistics[portid].dropped);
|
||||
|
||||
total_packets_dropped += port_statistics[portid].dropped;
|
||||
total_packets_tx += port_statistics[portid].tx;
|
||||
total_packets_rx += port_statistics[portid].rx;
|
||||
}
|
||||
printf("\nAggregate statistics ==============================="
|
||||
"\nTotal packets sent: %18"PRIu64
|
||||
"\nTotal packets received: %14"PRIu64
|
||||
"\nTotal packets dropped: %15"PRIu64,
|
||||
total_packets_tx,
|
||||
total_packets_rx,
|
||||
total_packets_dropped);
|
||||
printf("\n====================================================\n");
|
||||
}
|
||||
|
||||
/* Send the burst of packets on an output interface */
|
||||
static int
|
||||
l2fwd_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port)
|
||||
{
|
||||
struct rte_mbuf **m_table;
|
||||
unsigned ret;
|
||||
unsigned queueid = 0;
|
||||
|
||||
m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
|
||||
|
||||
ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n);
|
||||
port_statistics[port].tx += ret;
|
||||
if (unlikely(ret < n)) {
|
||||
port_statistics[port].dropped += (n - ret);
|
||||
do {
|
||||
rte_pktmbuf_free(m_table[ret]);
|
||||
} while (++ret < n);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Enqueue packets for TX and prepare them to be sent */
|
||||
static int
|
||||
l2fwd_send_packet(struct rte_mbuf *m, uint8_t port)
|
||||
{
|
||||
unsigned lcore_id, len;
|
||||
struct lcore_queue_conf *qconf;
|
||||
|
||||
lcore_id = rte_lcore_id();
|
||||
|
||||
qconf = &lcore_queue_conf[lcore_id];
|
||||
len = qconf->tx_mbufs[port].len;
|
||||
qconf->tx_mbufs[port].m_table[len] = m;
|
||||
len++;
|
||||
|
||||
/* enough pkts to be sent */
|
||||
if (unlikely(len == MAX_PKT_BURST)) {
|
||||
l2fwd_send_burst(qconf, MAX_PKT_BURST, port);
|
||||
len = 0;
|
||||
}
|
||||
|
||||
qconf->tx_mbufs[port].len = len;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
|
||||
{
|
||||
struct ether_hdr *eth;
|
||||
void *tmp;
|
||||
unsigned dst_port;
|
||||
|
||||
dst_port = l2fwd_dst_ports[portid];
|
||||
eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
|
||||
|
||||
/* 02:00:00:00:00:xx */
|
||||
tmp = ð->d_addr.addr_bytes[0];
|
||||
*((uint64_t *)tmp) = 0x000000000002 + ((uint64_t)dst_port << 40);
|
||||
|
||||
/* src addr */
|
||||
ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], ð->s_addr);
|
||||
|
||||
l2fwd_send_packet(m, (uint8_t) dst_port);
|
||||
}
|
||||
|
||||
/* main processing loop */
|
||||
static void
|
||||
l2fwd_main_loop(void)
|
||||
{
|
||||
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
|
||||
struct rte_mbuf *m;
|
||||
unsigned lcore_id;
|
||||
uint64_t prev_tsc, diff_tsc, cur_tsc;
|
||||
unsigned i, j, portid, nb_rx;
|
||||
struct lcore_queue_conf *qconf;
|
||||
const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
|
||||
/ US_PER_S * BURST_TX_DRAIN_US;
|
||||
|
||||
prev_tsc = 0;
|
||||
|
||||
lcore_id = rte_lcore_id();
|
||||
qconf = &lcore_queue_conf[lcore_id];
|
||||
|
||||
if (qconf->n_rx_port == 0) {
|
||||
RTE_LOG(INFO, L2FWD, "lcore %u has nothing to do\n", lcore_id);
|
||||
return;
|
||||
}
|
||||
|
||||
RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
|
||||
|
||||
for (i = 0; i < qconf->n_rx_port; i++) {
|
||||
|
||||
portid = qconf->rx_port_list[i];
|
||||
RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
|
||||
portid);
|
||||
}
|
||||
|
||||
uint64_t tsc_initial = rte_rdtsc();
|
||||
uint64_t tsc_lifetime = (rand()&0x07) * rte_get_tsc_hz();
|
||||
|
||||
while (1) {
|
||||
/* Keepalive heartbeat */
|
||||
rte_keepalive_mark_alive(rte_global_keepalive_info);
|
||||
|
||||
cur_tsc = rte_rdtsc();
|
||||
|
||||
/*
|
||||
* Die randomly within 7 secs for demo purposes if
|
||||
* keepalive enabled
|
||||
*/
|
||||
if (check_period > 0 && cur_tsc - tsc_initial > tsc_lifetime)
|
||||
break;
|
||||
|
||||
/*
|
||||
* TX burst queue drain
|
||||
*/
|
||||
diff_tsc = cur_tsc - prev_tsc;
|
||||
if (unlikely(diff_tsc > drain_tsc)) {
|
||||
|
||||
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
|
||||
if (qconf->tx_mbufs[portid].len == 0)
|
||||
continue;
|
||||
l2fwd_send_burst(&lcore_queue_conf[lcore_id],
|
||||
qconf->tx_mbufs[portid].len,
|
||||
(uint8_t) portid);
|
||||
qconf->tx_mbufs[portid].len = 0;
|
||||
}
|
||||
|
||||
prev_tsc = cur_tsc;
|
||||
}
|
||||
|
||||
/*
|
||||
* Read packet from RX queues
|
||||
*/
|
||||
for (i = 0; i < qconf->n_rx_port; i++) {
|
||||
|
||||
portid = qconf->rx_port_list[i];
|
||||
nb_rx = rte_eth_rx_burst((uint8_t) portid, 0,
|
||||
pkts_burst, MAX_PKT_BURST);
|
||||
|
||||
port_statistics[portid].rx += nb_rx;
|
||||
|
||||
for (j = 0; j < nb_rx; j++) {
|
||||
m = pkts_burst[j];
|
||||
rte_prefetch0(rte_pktmbuf_mtod(m, void *));
|
||||
l2fwd_simple_forward(m, portid);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
l2fwd_launch_one_lcore(__attribute__((unused)) void *dummy)
|
||||
{
|
||||
l2fwd_main_loop();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* display usage */
|
||||
static void
|
||||
l2fwd_usage(const char *prgname)
|
||||
{
|
||||
printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
|
||||
" -p PORTMASK: hexadecimal bitmask of ports to configure\n"
|
||||
" -q NQ: number of queue (=ports) per lcore (default is 1)\n"
|
||||
" -K PERIOD: Keepalive check period (5 default; 86400 max)\n"
|
||||
" -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default, 86400 maximum)\n",
|
||||
prgname);
|
||||
}
|
||||
|
||||
static int
|
||||
l2fwd_parse_portmask(const char *portmask)
|
||||
{
|
||||
char *end = NULL;
|
||||
unsigned long pm;
|
||||
|
||||
/* parse hexadecimal string */
|
||||
pm = strtoul(portmask, &end, 16);
|
||||
if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
|
||||
return -1;
|
||||
|
||||
if (pm == 0)
|
||||
return -1;
|
||||
|
||||
return pm;
|
||||
}
|
||||
|
||||
static unsigned int
|
||||
l2fwd_parse_nqueue(const char *q_arg)
|
||||
{
|
||||
char *end = NULL;
|
||||
unsigned long n;
|
||||
|
||||
/* parse hexadecimal string */
|
||||
n = strtoul(q_arg, &end, 10);
|
||||
if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
|
||||
return 0;
|
||||
if (n == 0)
|
||||
return 0;
|
||||
if (n >= MAX_RX_QUEUE_PER_LCORE)
|
||||
return 0;
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
static int
|
||||
l2fwd_parse_timer_period(const char *q_arg)
|
||||
{
|
||||
char *end = NULL;
|
||||
int n;
|
||||
|
||||
/* parse number string */
|
||||
n = strtol(q_arg, &end, 10);
|
||||
if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
|
||||
return -1;
|
||||
if (n >= MAX_TIMER_PERIOD)
|
||||
return -1;
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
static int
|
||||
l2fwd_parse_check_period(const char *q_arg)
|
||||
{
|
||||
char *end = NULL;
|
||||
int n;
|
||||
|
||||
/* parse number string */
|
||||
n = strtol(q_arg, &end, 10);
|
||||
if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
|
||||
return -1;
|
||||
if (n >= MAX_TIMER_PERIOD)
|
||||
return -1;
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
/* Parse the argument given in the command line of the application */
|
||||
static int
|
||||
l2fwd_parse_args(int argc, char **argv)
|
||||
{
|
||||
int opt, ret;
|
||||
char **argvopt;
|
||||
int option_index;
|
||||
char *prgname = argv[0];
|
||||
static struct option lgopts[] = {
|
||||
{NULL, 0, 0, 0}
|
||||
};
|
||||
|
||||
argvopt = argv;
|
||||
|
||||
while ((opt = getopt_long(argc, argvopt, "p:q:T:K:",
|
||||
lgopts, &option_index)) != EOF) {
|
||||
|
||||
switch (opt) {
|
||||
/* portmask */
|
||||
case 'p':
|
||||
l2fwd_enabled_port_mask = l2fwd_parse_portmask(optarg);
|
||||
if (l2fwd_enabled_port_mask == 0) {
|
||||
printf("invalid portmask\n");
|
||||
l2fwd_usage(prgname);
|
||||
return -1;
|
||||
}
|
||||
break;
|
||||
|
||||
/* nqueue */
|
||||
case 'q':
|
||||
l2fwd_rx_queue_per_lcore = l2fwd_parse_nqueue(optarg);
|
||||
if (l2fwd_rx_queue_per_lcore == 0) {
|
||||
printf("invalid queue number\n");
|
||||
l2fwd_usage(prgname);
|
||||
return -1;
|
||||
}
|
||||
break;
|
||||
|
||||
/* timer period */
|
||||
case 'T':
|
||||
timer_period = l2fwd_parse_timer_period(optarg)
|
||||
* 1000 * TIMER_MILLISECOND;
|
||||
if (timer_period < 0) {
|
||||
printf("invalid timer period\n");
|
||||
l2fwd_usage(prgname);
|
||||
return -1;
|
||||
}
|
||||
break;
|
||||
|
||||
/* Check period */
|
||||
case 'K':
|
||||
check_period = l2fwd_parse_check_period(optarg);
|
||||
if (check_period < 0) {
|
||||
printf("invalid check period\n");
|
||||
l2fwd_usage(prgname);
|
||||
return -1;
|
||||
}
|
||||
break;
|
||||
|
||||
/* long options */
|
||||
case 0:
|
||||
l2fwd_usage(prgname);
|
||||
return -1;
|
||||
|
||||
default:
|
||||
l2fwd_usage(prgname);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
if (optind >= 0)
|
||||
argv[optind-1] = prgname;
|
||||
|
||||
ret = optind-1;
|
||||
optind = 0; /* reset getopt lib */
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Check the link status of all ports in up to 9s, and print them finally */
|
||||
static void
|
||||
check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
|
||||
{
|
||||
#define CHECK_INTERVAL 100 /* 100ms */
|
||||
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
|
||||
uint8_t portid, count, all_ports_up, print_flag = 0;
|
||||
struct rte_eth_link link;
|
||||
|
||||
printf("\nChecking link status");
|
||||
fflush(stdout);
|
||||
for (count = 0; count <= MAX_CHECK_TIME; count++) {
|
||||
all_ports_up = 1;
|
||||
for (portid = 0; portid < port_num; portid++) {
|
||||
if ((port_mask & (1 << portid)) == 0)
|
||||
continue;
|
||||
memset(&link, 0, sizeof(link));
|
||||
rte_eth_link_get_nowait(portid, &link);
|
||||
/* print link status if flag set */
|
||||
if (print_flag == 1) {
|
||||
if (link.link_status)
|
||||
printf("Port %d Link Up - speed %u "
|
||||
"Mbps - %s\n", (uint8_t)portid,
|
||||
(unsigned)link.link_speed,
|
||||
(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
|
||||
("full-duplex") : ("half-duplex\n"));
|
||||
else
|
||||
printf("Port %d Link Down\n",
|
||||
(uint8_t)portid);
|
||||
continue;
|
||||
}
|
||||
/* clear all_ports_up flag if any link down */
|
||||
if (link.link_status == 0) {
|
||||
all_ports_up = 0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* after finally printing all link status, get out */
|
||||
if (print_flag == 1)
|
||||
break;
|
||||
|
||||
if (all_ports_up == 0) {
|
||||
printf(".");
|
||||
fflush(stdout);
|
||||
rte_delay_ms(CHECK_INTERVAL);
|
||||
}
|
||||
|
||||
/* set the print_flag if all ports up or timeout */
|
||||
if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
|
||||
print_flag = 1;
|
||||
printf("done\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
dead_core(__attribute__((unused)) void *ptr_data, const int id_core)
|
||||
{
|
||||
printf("Dead core %i - restarting..\n", id_core);
|
||||
if (rte_eal_get_lcore_state(id_core) == FINISHED) {
|
||||
rte_eal_wait_lcore(id_core);
|
||||
rte_eal_remote_launch(l2fwd_launch_one_lcore, NULL, id_core);
|
||||
} else {
|
||||
printf("..false positive!\n");
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
struct lcore_queue_conf *qconf;
|
||||
struct rte_eth_dev_info dev_info;
|
||||
int ret;
|
||||
uint8_t nb_ports;
|
||||
uint8_t nb_ports_available;
|
||||
uint8_t portid, last_port;
|
||||
unsigned lcore_id, rx_lcore_id;
|
||||
unsigned nb_ports_in_mask = 0;
|
||||
|
||||
/* init EAL */
|
||||
ret = rte_eal_init(argc, argv);
|
||||
if (ret < 0)
|
||||
rte_exit(EXIT_FAILURE, "Invalid EAL arguments\n");
|
||||
argc -= ret;
|
||||
argv += ret;
|
||||
|
||||
l2fwd_enabled_port_mask = 0;
|
||||
|
||||
/* parse application arguments (after the EAL ones) */
|
||||
ret = l2fwd_parse_args(argc, argv);
|
||||
if (ret < 0)
|
||||
rte_exit(EXIT_FAILURE, "Invalid L2FWD arguments\n");
|
||||
|
||||
/* create the mbuf pool */
|
||||
l2fwd_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, 32,
|
||||
0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
|
||||
if (l2fwd_pktmbuf_pool == NULL)
|
||||
rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\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;
|
||||
|
||||
/* reset l2fwd_dst_ports */
|
||||
for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
|
||||
l2fwd_dst_ports[portid] = 0;
|
||||
last_port = 0;
|
||||
|
||||
/*
|
||||
* Each logical core is assigned a dedicated TX queue on each port.
|
||||
*/
|
||||
for (portid = 0; portid < nb_ports; portid++) {
|
||||
/* skip ports that are not enabled */
|
||||
if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
|
||||
continue;
|
||||
|
||||
if (nb_ports_in_mask % 2) {
|
||||
l2fwd_dst_ports[portid] = last_port;
|
||||
l2fwd_dst_ports[last_port] = portid;
|
||||
} else
|
||||
last_port = portid;
|
||||
|
||||
nb_ports_in_mask++;
|
||||
|
||||
rte_eth_dev_info_get(portid, &dev_info);
|
||||
}
|
||||
if (nb_ports_in_mask % 2) {
|
||||
printf("Notice: odd number of ports in portmask.\n");
|
||||
l2fwd_dst_ports[last_port] = last_port;
|
||||
}
|
||||
|
||||
rx_lcore_id = 1;
|
||||
qconf = NULL;
|
||||
|
||||
/* Initialize the port/queue configuration of each logical core */
|
||||
for (portid = 0; portid < nb_ports; portid++) {
|
||||
/* skip ports that are not enabled */
|
||||
if ((l2fwd_enabled_port_mask & (1 << portid)) == 0)
|
||||
continue;
|
||||
|
||||
/* get the lcore_id for this port */
|
||||
while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
|
||||
lcore_queue_conf[rx_lcore_id].n_rx_port ==
|
||||
l2fwd_rx_queue_per_lcore) {
|
||||
rx_lcore_id++;
|
||||
if (rx_lcore_id >= RTE_MAX_LCORE)
|
||||
rte_exit(EXIT_FAILURE, "Not enough cores\n");
|
||||
}
|
||||
|
||||
if (qconf != &lcore_queue_conf[rx_lcore_id])
|
||||
/* Assigned a new logical core in the loop above. */
|
||||
qconf = &lcore_queue_conf[rx_lcore_id];
|
||||
|
||||
qconf->rx_port_list[qconf->n_rx_port] = portid;
|
||||
qconf->n_rx_port++;
|
||||
printf("Lcore %u: RX port %u\n",
|
||||
rx_lcore_id, (unsigned) portid);
|
||||
}
|
||||
|
||||
nb_ports_available = nb_ports;
|
||||
|
||||
/* Initialise each port */
|
||||
for (portid = 0; portid < nb_ports; portid++) {
|
||||
/* skip ports that are not enabled */
|
||||
if ((l2fwd_enabled_port_mask & (1 << portid)) == 0) {
|
||||
printf("Skipping disabled port %u\n",
|
||||
(unsigned) portid);
|
||||
nb_ports_available--;
|
||||
continue;
|
||||
}
|
||||
/* init port */
|
||||
printf("Initializing port %u... ", (unsigned) portid);
|
||||
fflush(stdout);
|
||||
ret = rte_eth_dev_configure(portid, 1, 1, &port_conf);
|
||||
if (ret < 0)
|
||||
rte_exit(EXIT_FAILURE,
|
||||
"Cannot configure device: err=%d, port=%u\n",
|
||||
ret, (unsigned) portid);
|
||||
|
||||
rte_eth_macaddr_get(portid, &l2fwd_ports_eth_addr[portid]);
|
||||
|
||||
/* init one RX queue */
|
||||
fflush(stdout);
|
||||
ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
|
||||
rte_eth_dev_socket_id(portid),
|
||||
NULL,
|
||||
l2fwd_pktmbuf_pool);
|
||||
if (ret < 0)
|
||||
rte_exit(EXIT_FAILURE,
|
||||
"rte_eth_rx_queue_setup:err=%d, port=%u\n",
|
||||
ret, (unsigned) portid);
|
||||
|
||||
/* init one TX queue on each port */
|
||||
fflush(stdout);
|
||||
ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
|
||||
rte_eth_dev_socket_id(portid),
|
||||
NULL);
|
||||
if (ret < 0)
|
||||
rte_exit(EXIT_FAILURE,
|
||||
"rte_eth_tx_queue_setup:err=%d, port=%u\n",
|
||||
ret, (unsigned) portid);
|
||||
|
||||
/* Start device */
|
||||
ret = rte_eth_dev_start(portid);
|
||||
if (ret < 0)
|
||||
rte_exit(EXIT_FAILURE,
|
||||
"rte_eth_dev_start:err=%d, port=%u\n",
|
||||
ret, (unsigned) portid);
|
||||
|
||||
rte_eth_promiscuous_enable(portid);
|
||||
|
||||
printf("Port %u, MAC address: "
|
||||
"%02X:%02X:%02X:%02X:%02X:%02X\n\n",
|
||||
(unsigned) portid,
|
||||
l2fwd_ports_eth_addr[portid].addr_bytes[0],
|
||||
l2fwd_ports_eth_addr[portid].addr_bytes[1],
|
||||
l2fwd_ports_eth_addr[portid].addr_bytes[2],
|
||||
l2fwd_ports_eth_addr[portid].addr_bytes[3],
|
||||
l2fwd_ports_eth_addr[portid].addr_bytes[4],
|
||||
l2fwd_ports_eth_addr[portid].addr_bytes[5]);
|
||||
|
||||
/* initialize port stats */
|
||||
memset(&port_statistics, 0, sizeof(port_statistics));
|
||||
}
|
||||
|
||||
if (!nb_ports_available) {
|
||||
rte_exit(EXIT_FAILURE,
|
||||
"All available ports are disabled. Please set portmask.\n");
|
||||
}
|
||||
|
||||
check_all_ports_link_status(nb_ports, l2fwd_enabled_port_mask);
|
||||
|
||||
struct rte_timer hb_timer, stats_timer;
|
||||
|
||||
rte_timer_subsystem_init();
|
||||
rte_timer_init(&stats_timer);
|
||||
|
||||
if (check_period > 0) {
|
||||
rte_global_keepalive_info =
|
||||
rte_keepalive_create(&dead_core, NULL);
|
||||
if (rte_global_keepalive_info == NULL)
|
||||
rte_exit(EXIT_FAILURE, "init_keep_alive() failed");
|
||||
rte_timer_init(&hb_timer);
|
||||
if (rte_timer_reset(&hb_timer,
|
||||
(check_period * rte_get_timer_hz()) / 1000,
|
||||
PERIODICAL,
|
||||
rte_lcore_id(),
|
||||
(void(*)(struct rte_timer*, void*))
|
||||
&rte_keepalive_dispatch_pings,
|
||||
rte_global_keepalive_info
|
||||
) != 0 )
|
||||
rte_exit(EXIT_FAILURE, "Keepalive setup failure.\n");
|
||||
}
|
||||
if (timer_period > 0) {
|
||||
if (rte_timer_reset(&stats_timer,
|
||||
(timer_period * rte_get_timer_hz()) / 1000,
|
||||
PERIODICAL,
|
||||
rte_lcore_id(),
|
||||
&print_stats, NULL
|
||||
) != 0 )
|
||||
rte_exit(EXIT_FAILURE, "Stats setup failure.\n");
|
||||
}
|
||||
/* launch per-lcore init on every slave lcore */
|
||||
RTE_LCORE_FOREACH_SLAVE(lcore_id) {
|
||||
struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
|
||||
|
||||
if (qconf->n_rx_port == 0)
|
||||
RTE_LOG(INFO, L2FWD,
|
||||
"lcore %u has nothing to do\n",
|
||||
lcore_id
|
||||
);
|
||||
else {
|
||||
rte_eal_remote_launch(
|
||||
l2fwd_launch_one_lcore,
|
||||
NULL,
|
||||
lcore_id
|
||||
);
|
||||
rte_keepalive_register_core(rte_global_keepalive_info,
|
||||
lcore_id);
|
||||
}
|
||||
}
|
||||
for (;;) {
|
||||
rte_timer_manage();
|
||||
rte_delay_ms(5);
|
||||
}
|
||||
|
||||
RTE_LCORE_FOREACH_SLAVE(lcore_id) {
|
||||
if (rte_eal_wait_lcore(lcore_id) < 0)
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
Loading…
Reference in New Issue
Block a user