Imported Upstream version 16.04

[deb_dpdk.git] / lib / librte_eal / bsdapp / eal / eal_lcore.c

diff --git a/lib/librte_eal/bsdapp/eal/eal_lcore.c b/lib/librte_eal/bsdapp/eal/eal_lcore.c
new file mode 100644 (file)
index 0000000..b8bfafd
--- /dev/null
+++ b/lib/librte_eal/bsdapp/eal/eal_lcore.c
@@ -0,0 +1,79 @@
+/*-
+ *   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.
+ */
+
+#include <unistd.h>
+#include <sys/sysctl.h>
+
+#include <rte_log.h>
+#include <rte_eal.h>
+#include <rte_lcore.h>
+#include <rte_common.h>
+#include <rte_debug.h>
+
+#include "eal_private.h"
+#include "eal_thread.h"
+
+/* No topology information available on FreeBSD including NUMA info */
+unsigned
+eal_cpu_core_id(__rte_unused unsigned lcore_id)
+{
+       return 0;
+}
+
+static int
+eal_get_ncpus(void)
+{
+       int mib[2] = {CTL_HW, HW_NCPU};
+       int ncpu;
+       size_t len = sizeof(ncpu);
+
+       sysctl(mib, 2, &ncpu, &len, NULL, 0);
+       RTE_LOG(INFO, EAL, "Sysctl reports %d cpus\n", ncpu);
+       return ncpu;
+}
+
+unsigned
+eal_cpu_socket_id(__rte_unused unsigned cpu_id)
+{
+       return 0;
+}
+
+/* Check if a cpu is present by the presence of the
+ * cpu information for it.
+ */
+int
+eal_cpu_detected(unsigned lcore_id)
+{
+       const unsigned ncpus = eal_get_ncpus();
+       return lcore_id < ncpus;
+}