99a2dd955f
There is no reason for the DPDK libraries to all have 'librte_' prefix on the directory names. This prefix makes the directory names longer and also makes it awkward to add features referring to individual libraries in the build - should the lib names be specified with or without the prefix. Therefore, we can just remove the library prefix and use the library's unique name as the directory name, i.e. 'eal' rather than 'librte_eal' Signed-off-by: Bruce Richardson <bruce.richardson@intel.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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