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authorGowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>2018-01-30 14:29:13 +0530
committerYuanhan Liu <yliu@fridaylinux.org>2018-02-26 22:27:23 +0800
commitadf59a9cf84336ed910548696fd835b06232495a (patch)
tree3c2c7704c2e7cdff8bbb2324a80813022ec08c4f
parent3bdf79031ac9991210af55902aa632adde32d938 (diff)
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eal/ppc64: revert arch-specific TSC freq query
[ upstream commit 4e4b97b71ca0f25b2b7ceb03d21a100f74fa4512 ] This reverts commit 15692396fd68932b6a81f00f12d4b0da12baa7d3 (eal/ppc64: implement arch-specific TSC freq query). We intended to derive pkt/sec estimation with cpu clock frequency. As timebase register serves the timer purpose, we need to stick with it for calculating pkt/sec, hence reverting the change. Fixes: 15692396fd ("eal/ppc64: implement arch-specific TSC freq query") Signed-off-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com> Acked-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>
-rw-r--r--lib/librte_eal/common/arch/ppc_64/rte_cycles.c47
1 files changed, 1 insertions, 46 deletions
diff --git a/lib/librte_eal/common/arch/ppc_64/rte_cycles.c b/lib/librte_eal/common/arch/ppc_64/rte_cycles.c
index 69a9f74..851fd02 100644
--- a/lib/librte_eal/common/arch/ppc_64/rte_cycles.c
+++ b/lib/librte_eal/common/arch/ppc_64/rte_cycles.c
@@ -1,52 +1,7 @@
-/*
- * BSD LICENSE
- *
- * Copyright (C) IBM Corporation 2014.
- *
- * 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 IBM 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 <rte_lcore.h>
-#include <rte_log.h>
-#include "eal_filesystem.h"
#include "eal_private.h"
-static const char sys_cpu_dir[] = "/sys/devices/system/cpu";
-
uint64_t
get_tsc_freq_arch(void)
{
- unsigned long cpu_hz;
- char path[PATH_MAX];
-
- snprintf(path, sizeof(path), "%s/cpu%d/cpufreq/cpuinfo_cur_freq",
- sys_cpu_dir, rte_get_master_lcore());
- if (eal_parse_sysfs_value(path, &cpu_hz) < 0)
- RTE_LOG(WARNING, EAL, "Unable to parse %s\n", path);
-
- return cpu_hz*1000;
+ return 0;
}