Changes in v5
Rebase to latest code.
Changes in v4
Implement cpu_detected() for BSD.
Have common RTE_LOG for Linux and BSD in rte_eal_cpu_init().
Remove RTE_EXEC_ENV_BSDAPP in common file.
Changes in v3
Changed subject to be more explicit on file name inclusion.
Changes in v2
None
Changes in v1
Move common function in eal_lcore.c to librte_eal/common/
eal_common_lcore.c file.
Following function is moved to eal_common_lcore.c file
int rte_eal_cpu_init(void);
Use RTE_EXEC_ENV_BSDAPP to differentiate minor differences in
common function.
Makefile changes to reflect new file added.
Fix checkpatch warnings and errors.
Signed-off-by: Ravi Kerur <rkerur at gmail.com>
---
lib/librte_eal/bsdapp/eal/Makefile | 1 +
lib/librte_eal/bsdapp/eal/eal_lcore.c | 72 +++++----------------
lib/librte_eal/common/eal_common_lcore.c | 107 +++++++++++++++++++++++++++++++
lib/librte_eal/common/eal_private.h | 14 ++++
lib/librte_eal/linuxapp/eal/Makefile | 2 +
lib/librte_eal/linuxapp/eal/eal_lcore.c | 66 ++-----------------
6 files changed, 143 insertions(+), 119 deletions(-)
create mode 100644 lib/librte_eal/common/eal_common_lcore.c
diff --git a/lib/librte_eal/bsdapp/eal/Makefile
b/lib/librte_eal/bsdapp/eal/Makefile
index d0a7c43..a28ead3 100644
--- a/lib/librte_eal/bsdapp/eal/Makefile
+++ b/lib/librte_eal/bsdapp/eal/Makefile
@@ -80,6 +80,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_options.c
SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_thread.c
SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_system.c
SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_runtime.c
+SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_lcore.c
CFLAGS_eal.o := -D_GNU_SOURCE
#CFLAGS_eal_thread.o := -D_GNU_SOURCE
diff --git a/lib/librte_eal/bsdapp/eal/eal_lcore.c
b/lib/librte_eal/bsdapp/eal/eal_lcore.c
index 162fb4f..b47eb1b 100644
--- a/lib/librte_eal/bsdapp/eal/eal_lcore.c
+++ b/lib/librte_eal/bsdapp/eal/eal_lcore.c
@@ -44,11 +44,14 @@
#include "eal_thread.h"
/* No topology information available on FreeBSD including NUMA info */
-#define cpu_core_id(X) 0
-#define cpu_socket_id(X) 0
+unsigned
+eal_cpu_core_id(__rte_unused unsigned lcore_id)
+{
+ return 0;
+}
static int
-get_ncpus(void)
+eal_get_ncpus(void)
{
int mib[2] = {CTL_HW, HW_NCPU};
int ncpu;
@@ -59,63 +62,18 @@ get_ncpus(void)
return ncpu;
}
-/*
- * fill the cpu_info structure with as much info as we can get.
- * code is similar to linux version, but sadly available info is less.
- */
-int
-rte_eal_cpu_init(void)
+unsigned
+eal_cpu_socket_id(__rte_unused unsigned cpu_id)
{
- /* pointer to global configuration */
- struct rte_config *config = rte_eal_get_configuration();
- unsigned lcore_id;
- unsigned count = 0;
-
- const unsigned ncpus = get_ncpus();
- /*
- * Parse the maximum set of logical cores, detect the subset of running
- * ones and enable them by default.
- */
- for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
- /* init cpuset for per lcore config */
- CPU_ZERO(&lcore_config[lcore_id].cpuset);
-
- lcore_config[lcore_id].detected = (lcore_id < ncpus);
- if (lcore_config[lcore_id].detected == 0) {
- config->lcore_role[lcore_id] = ROLE_OFF;
- continue;
- }
-
- /* By default, lcore 1:1 map to cpu id */
- CPU_SET(lcore_id, &lcore_config[lcore_id].cpuset);
-
- /* By default, each detected core is enabled */
- config->lcore_role[lcore_id] = ROLE_RTE;
- lcore_config[lcore_id].core_id = cpu_core_id(lcore_id);
- lcore_config[lcore_id].socket_id = cpu_socket_id(lcore_id);
- if (lcore_config[lcore_id].socket_id >= RTE_MAX_NUMA_NODES)
-#ifdef RTE_EAL_ALLOW_INV_SOCKET_ID
- lcore_config[lcore_id].socket_id = 0;
-#else
- rte_panic("Socket ID (%u) is greater than "
- "RTE_MAX_NUMA_NODES (%d)\n",
- lcore_config[lcore_id].socket_id,
RTE_MAX_NUMA_NODES);
-#endif
- RTE_LOG(DEBUG, EAL, "Detected lcore %u\n",
- lcore_id);
- count++;
- }
- /* Set the count of enabled logical cores of the EAL configuration */
- config->lcore_count = count;
- RTE_LOG(DEBUG, EAL, "Support maximum %u logical core(s) by
configuration.\n",
- RTE_MAX_LCORE);
- RTE_LOG(DEBUG, EAL, "Detected %u lcore(s)\n", config->lcore_count);
-
return 0;
}
-unsigned
-eal_cpu_socket_id(__rte_unused unsigned cpu_id)
+/* Check if a cpu is present by the presence of the
+ * cpu information for it.
+ */
+int
+eal_cpu_detected(unsigned lcore_id)
{
- return cpu_socket_id(cpu_id);
+ const unsigned ncpus = eal_get_ncpus();
+ return (lcore_id < ncpus);
}
diff --git a/lib/librte_eal/common/eal_common_lcore.c
b/lib/librte_eal/common/eal_common_lcore.c
new file mode 100644
index 0000000..845140b
--- /dev/null
+++ b/lib/librte_eal/common/eal_common_lcore.c
@@ -0,0 +1,107 @@
+/*-
+ * 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 <limits.h>
+#include <string.h>
+#include <dirent.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"
+
+/*
+ * Parse /sys/devices/system/cpu to get the number of physical and logical
+ * processors on the machine. The function will fill the cpu_info
+ * structure.
+ */
+int
+rte_eal_cpu_init(void)
+{
+ /* pointer to global configuration */
+ struct rte_config *config = rte_eal_get_configuration();
+ unsigned lcore_id;
+ unsigned count = 0;
+
+ /*
+ * Parse the maximum set of logical cores, detect the subset of running
+ * ones and enable them by default.
+ */
+ for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+ /* init cpuset for per lcore config */
+ CPU_ZERO(&lcore_config[lcore_id].cpuset);
+
+ /* in 1:1 mapping, record related cpu detected state */
+ lcore_config[lcore_id].detected = eal_cpu_detected(lcore_id);
+ if (lcore_config[lcore_id].detected == 0) {
+ config->lcore_role[lcore_id] = ROLE_OFF;
+ continue;
+ }
+
+ /* By default, lcore 1:1 map to cpu id */
+ CPU_SET(lcore_id, &lcore_config[lcore_id].cpuset);
+
+ /* By default, each detected core is enabled */
+ config->lcore_role[lcore_id] = ROLE_RTE;
+ lcore_config[lcore_id].core_id = eal_cpu_core_id(lcore_id);
+ lcore_config[lcore_id].socket_id = eal_cpu_socket_id(lcore_id);
+ if (lcore_config[lcore_id].socket_id >= RTE_MAX_NUMA_NODES)
+#ifdef RTE_EAL_ALLOW_INV_SOCKET_ID
+ lcore_config[lcore_id].socket_id = 0;
+#else
+ rte_panic("Socket ID (%u) is greater than "
+ "RTE_MAX_NUMA_NODES (%d)\n",
+ lcore_config[lcore_id].socket_id,
+ RTE_MAX_NUMA_NODES);
+#endif
+
+ RTE_LOG(DEBUG, EAL, "Detected lcore %u as "
+ "core %u on socket %u\n",
+ lcore_id, lcore_config[lcore_id].core_id,
+ lcore_config[lcore_id].socket_id);
+ count++;
+ }
+ /* Set the count of enabled logical cores of the EAL configuration */
+ config->lcore_count = count;
+ RTE_LOG(DEBUG, EAL,
+ "Support maximum %u logical core(s) by configuration.\n",
+ RTE_MAX_LCORE);
+ RTE_LOG(DEBUG, EAL, "Detected %u lcore(s)\n", config->lcore_count);
+
+ return 0;
+}
diff --git a/lib/librte_eal/common/eal_private.h
b/lib/librte_eal/common/eal_private.h
index cdcf4b9..458e8c1 100644
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -310,4 +310,18 @@ void rte_eal_config_attach(void);
*/
void rte_eal_config_reattach(void);
+/**
+ * This function gets cpu core_id
+ *
+ * This function is private to the EAL.
+ */
+unsigned eal_cpu_core_id(unsigned lcore_id);
+
+/**
+ * This function check if cpu is present
+ *
+ * This function is private to the EAL.
+ */
+int eal_cpu_detected(unsigned lcore_id);
+
#endif /* _EAL_PRIVATE_H_ */
diff --git a/lib/librte_eal/linuxapp/eal/Makefile
b/lib/librte_eal/linuxapp/eal/Makefile
index c36d5f4..8ae23a0 100644
--- a/lib/librte_eal/linuxapp/eal/Makefile
+++ b/lib/librte_eal/linuxapp/eal/Makefile
@@ -92,6 +92,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_options.c
SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_thread.c
SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_system.c
SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_runtime.c
+SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_lcore.c
CFLAGS_eal.o := -D_GNU_SOURCE
CFLAGS_eal_interrupts.o := -D_GNU_SOURCE
@@ -106,6 +107,7 @@ CFLAGS_eal_pci_vfio.o := -D_GNU_SOURCE
CFLAGS_eal_common_whitelist.o := -D_GNU_SOURCE
CFLAGS_eal_common_options.o := -D_GNU_SOURCE
CFLAGS_eal_common_thread.o := -D_GNU_SOURCE
+CFLAGS_eal_common_lcore.o := -D_GNU_SOURCE
# workaround for a gcc bug with noreturn attribute
# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
diff --git a/lib/librte_eal/linuxapp/eal/eal_lcore.c
b/lib/librte_eal/linuxapp/eal/eal_lcore.c
index ef8c433..9af6d38 100644
--- a/lib/librte_eal/linuxapp/eal/eal_lcore.c
+++ b/lib/librte_eal/linuxapp/eal/eal_lcore.c
@@ -52,8 +52,8 @@
#define PHYS_PKG_FILE "topology/physical_package_id"
/* Check if a cpu is present by the presence of the cpu information for it */
-static int
-cpu_detected(unsigned lcore_id)
+int
+eal_cpu_detected(unsigned lcore_id)
{
char path[PATH_MAX];
int len = snprintf(path, sizeof(path), SYS_CPU_DIR
@@ -122,8 +122,8 @@ err:
}
/* Get the cpu core id value from the /sys/.../cpuX core_id value */
-static unsigned
-cpu_core_id(unsigned lcore_id)
+unsigned
+eal_cpu_core_id(unsigned lcore_id)
{
char path[PATH_MAX];
unsigned long id;
@@ -140,61 +140,3 @@ err:
"for lcore %u - assuming core 0\n", SYS_CPU_DIR,
lcore_id);
return 0;
}
-
-/*
- * Parse /sys/devices/system/cpu to get the number of physical and logical
- * processors on the machine. The function will fill the cpu_info
- * structure.
- */
-int
-rte_eal_cpu_init(void)
-{
- /* pointer to global configuration */
- struct rte_config *config = rte_eal_get_configuration();
- unsigned lcore_id;
- unsigned count = 0;
-
- /*
- * Parse the maximum set of logical cores, detect the subset of running
- * ones and enable them by default.
- */
- for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
- /* init cpuset for per lcore config */
- CPU_ZERO(&lcore_config[lcore_id].cpuset);
-
- /* in 1:1 mapping, record related cpu detected state */
- lcore_config[lcore_id].detected = cpu_detected(lcore_id);
- if (lcore_config[lcore_id].detected == 0) {
- config->lcore_role[lcore_id] = ROLE_OFF;
- continue;
- }
-
- /* By default, lcore 1:1 map to cpu id */
- CPU_SET(lcore_id, &lcore_config[lcore_id].cpuset);
-
- /* By default, each detected core is enabled */
- config->lcore_role[lcore_id] = ROLE_RTE;
- lcore_config[lcore_id].core_id = cpu_core_id(lcore_id);
- lcore_config[lcore_id].socket_id = eal_cpu_socket_id(lcore_id);
- if (lcore_config[lcore_id].socket_id >= RTE_MAX_NUMA_NODES)
-#ifdef RTE_EAL_ALLOW_INV_SOCKET_ID
- lcore_config[lcore_id].socket_id = 0;
-#else
- rte_panic("Socket ID (%u) is greater than "
- "RTE_MAX_NUMA_NODES (%d)\n",
- lcore_config[lcore_id].socket_id,
RTE_MAX_NUMA_NODES);
-#endif
- RTE_LOG(DEBUG, EAL, "Detected lcore %u as core %u on socket
%u\n",
- lcore_id,
- lcore_config[lcore_id].core_id,
- lcore_config[lcore_id].socket_id);
- count ++;
- }
- /* Set the count of enabled logical cores of the EAL configuration */
- config->lcore_count = count;
- RTE_LOG(DEBUG, EAL, "Support maximum %u logical core(s) by
configuration.\n",
- RTE_MAX_LCORE);
- RTE_LOG(DEBUG, EAL, "Detected %u lcore(s)\n", config->lcore_count);
-
- return 0;
-}
--
1.9.1
