a083f8cc77
Since the kernel modules are moved to kernel/ directory, there is no need anymore for the sub-directory eal/ in linux/, freebsd/ and windows/. Signed-off-by: Thomas Monjalon <thomas@monjalon.net> Acked-by: David Marchand <david.marchand@redhat.com>
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <inttypes.h>
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <errno.h>
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#include <rte_common.h>
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#include <rte_log.h>
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#include <rte_cycles.h>
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#include <rte_memory.h>
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#include <rte_eal.h>
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#include <rte_debug.h>
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#include "eal_private.h"
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#include "eal_internal_cfg.h"
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#ifdef RTE_LIBEAL_USE_HPET
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#warning HPET is not supported in FreeBSD
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#endif
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enum timer_source eal_timer_source = EAL_TIMER_TSC;
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uint64_t
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get_tsc_freq(void)
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{
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size_t sz;
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int tmp;
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uint64_t tsc_hz;
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sz = sizeof(tmp);
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tmp = 0;
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if (sysctlbyname("kern.timecounter.smp_tsc", &tmp, &sz, NULL, 0))
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RTE_LOG(WARNING, EAL, "%s\n", strerror(errno));
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else if (tmp != 1)
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RTE_LOG(WARNING, EAL, "TSC is not safe to use in SMP mode\n");
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tmp = 0;
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if (sysctlbyname("kern.timecounter.invariant_tsc", &tmp, &sz, NULL, 0))
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RTE_LOG(WARNING, EAL, "%s\n", strerror(errno));
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else if (tmp != 1)
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RTE_LOG(WARNING, EAL, "TSC is not invariant\n");
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sz = sizeof(tsc_hz);
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if (sysctlbyname("machdep.tsc_freq", &tsc_hz, &sz, NULL, 0)) {
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RTE_LOG(WARNING, EAL, "%s\n", strerror(errno));
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return 0;
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}
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return tsc_hz;
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}
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int
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rte_eal_timer_init(void)
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{
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set_tsc_freq();
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return 0;
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}
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