Imported Upstream version 16.04

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

diff --git a/lib/librte_eal/bsdapp/eal/eal_timer.c b/lib/librte_eal/bsdapp/eal/eal_timer.c
new file mode 100644 (file)
index 0000000..f12d9bd
--- /dev/null
+++ b/lib/librte_eal/bsdapp/eal/eal_timer.c
@@ -0,0 +1,94 @@
+/*-
+ *   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 <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <errno.h>
+
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_cycles.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_debug.h>
+
+#include "eal_private.h"
+#include "eal_internal_cfg.h"
+
+#ifdef RTE_LIBEAL_USE_HPET
+#warning HPET is not supported in FreeBSD
+#endif
+
+enum timer_source eal_timer_source = EAL_TIMER_TSC;
+
+uint64_t
+get_tsc_freq(void)
+{
+       size_t sz;
+       int tmp;
+       uint64_t tsc_hz;
+
+       sz = sizeof(tmp);
+       tmp = 0;
+
+       if (sysctlbyname("kern.timecounter.smp_tsc", &tmp, &sz, NULL, 0))
+               RTE_LOG(WARNING, EAL, "%s\n", strerror(errno));
+       else if (tmp != 1)
+               RTE_LOG(WARNING, EAL, "TSC is not safe to use in SMP mode\n");
+
+       tmp = 0;
+
+       if (sysctlbyname("kern.timecounter.invariant_tsc", &tmp, &sz, NULL, 0))
+               RTE_LOG(WARNING, EAL, "%s\n", strerror(errno));
+       else if (tmp != 1)
+               RTE_LOG(WARNING, EAL, "TSC is not invariant\n");
+
+       sz = sizeof(tsc_hz);
+       if (sysctlbyname("machdep.tsc_freq", &tsc_hz, &sz, NULL, 0)) {
+               RTE_LOG(WARNING, EAL, "%s\n", strerror(errno));
+               return 0;
+       }
+
+       return tsc_hz;
+}
+
+int
+rte_eal_timer_init(void)
+{
+       set_tsc_freq();
+       return 0;
+}