[dpdk-dev] [PATCH] eal: Clean up export of per_lcore__socket_id

[Neil Horman]

Theres no need to export this variable.  Its set and queried from an API call
that doesn't exist in the hot path.  Instead just export the rte_socket_id
symbol and make the variable private to protect it from type changes.  We should
do this with the other exported variables too, but I think its too late in the
release cycle to do that.

tested using distributor_autotest (which uses rte_socket_id), successfully.
Only tested on linux, as I don't currently have a bsd system spun up, but the
changes are symmetric, and should be fine

Signed-off-by: Neil Horman <nhorman at tuxdriver.com>
---
 lib/librte_eal/bsdapp/eal/eal_thread.c          | 5 +++++
 lib/librte_eal/bsdapp/eal/rte_eal_version.map   | 2 +-
 lib/librte_eal/common/eal_common_thread.c       | 2 ++
 lib/librte_eal/common/include/rte_lcore.h       | 7 +------
 lib/librte_eal/linuxapp/eal/eal_thread.c        | 5 +++++
 lib/librte_eal/linuxapp/eal/rte_eal_version.map | 2 +-
 6 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/lib/librte_eal/bsdapp/eal/eal_thread.c b/lib/librte_eal/bsdapp/eal/eal_thread.c
index ca95c72..5e6eea9 100644
--- a/lib/librte_eal/bsdapp/eal/eal_thread.c
+++ b/lib/librte_eal/bsdapp/eal/eal_thread.c
@@ -60,6 +60,11 @@ RTE_DEFINE_PER_LCORE(unsigned, _lcore_id) = LCORE_ID_ANY;
 RTE_DEFINE_PER_LCORE(unsigned, _socket_id) = (unsigned)SOCKET_ID_ANY;
 RTE_DEFINE_PER_LCORE(rte_cpuset_t, _cpuset);
 
+unsigned rte_socket_id(void)
+{
+	return RTE_PER_LCORE(_socket_id);
+}
+
 /*
  * Send a message to a slave lcore identified by slave_id to call a
  * function f with argument arg. Once the execution is done, the
diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
index 17515a9..d83524d 100644
--- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
@@ -10,7 +10,6 @@ DPDK_2.0 {
 	pci_driver_list;
 	per_lcore__lcore_id;
 	per_lcore__rte_errno;
-	per_lcore__socket_id;
 	rte_cpu_check_supported;
 	rte_cpu_get_flag_enabled;
 	rte_cycles_vmware_tsc_map;
@@ -82,6 +81,7 @@ DPDK_2.0 {
 	rte_set_log_level;
 	rte_set_log_type;
 	rte_snprintf;
+	rte_socket_id;
 	rte_strerror;
 	rte_strsplit;
 	rte_sys_gettid;
diff --git a/lib/librte_eal/common/eal_common_thread.c b/lib/librte_eal/common/eal_common_thread.c
index f4d9892..4010eab 100644
--- a/lib/librte_eal/common/eal_common_thread.c
+++ b/lib/librte_eal/common/eal_common_thread.c
@@ -46,6 +46,8 @@
 
 #include "eal_thread.h"
 
+RTE_DECLARE_PER_LCORE(unsigned , _socket_id);
+
 int eal_cpuset_socket_id(rte_cpuset_t *cpusetp)
 {
 	unsigned cpu = 0;
diff --git a/lib/librte_eal/common/include/rte_lcore.h b/lib/librte_eal/common/include/rte_lcore.h
index 20a58eb..e03264e 100644
--- a/lib/librte_eal/common/include/rte_lcore.h
+++ b/lib/librte_eal/common/include/rte_lcore.h
@@ -81,7 +81,6 @@ struct lcore_config {
 extern struct lcore_config lcore_config[RTE_MAX_LCORE];
 
 RTE_DECLARE_PER_LCORE(unsigned, _lcore_id);  /**< Per thread "lcore id". */
-RTE_DECLARE_PER_LCORE(unsigned, _socket_id); /**< Per thread "socket id". */
 RTE_DECLARE_PER_LCORE(rte_cpuset_t, _cpuset); /**< Per thread "cpuset". */
 
 /**
@@ -145,11 +144,7 @@ rte_lcore_index(int lcore_id)
  * @return
  *   the ID of current lcoreid's physical socket
  */
-static inline unsigned
-rte_socket_id(void)
-{
-	return RTE_PER_LCORE(_socket_id);
-}
+unsigned rte_socket_id(void);
 
 /**
  * Get the ID of the physical socket of the specified lcore
diff --git a/lib/librte_eal/linuxapp/eal/eal_thread.c b/lib/librte_eal/linuxapp/eal/eal_thread.c
index 5635c7d..9cacd86 100644
--- a/lib/librte_eal/linuxapp/eal/eal_thread.c
+++ b/lib/librte_eal/linuxapp/eal/eal_thread.c
@@ -60,6 +60,11 @@ RTE_DEFINE_PER_LCORE(unsigned, _lcore_id) = LCORE_ID_ANY;
 RTE_DEFINE_PER_LCORE(unsigned, _socket_id) = (unsigned)SOCKET_ID_ANY;
 RTE_DEFINE_PER_LCORE(rte_cpuset_t, _cpuset);
 
+unsigned rte_socket_id(void)
+{
+	return RTE_PER_LCORE(_socket_id);
+}
+
 /*
  * Send a message to a slave lcore identified by slave_id to call a
  * function f with argument arg. Once the execution is done, the
diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
index 17515a9..d83524d 100644
--- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
@@ -10,7 +10,6 @@ DPDK_2.0 {
 	pci_driver_list;
 	per_lcore__lcore_id;
 	per_lcore__rte_errno;
-	per_lcore__socket_id;
 	rte_cpu_check_supported;
 	rte_cpu_get_flag_enabled;
 	rte_cycles_vmware_tsc_map;
@@ -82,6 +81,7 @@ DPDK_2.0 {
 	rte_set_log_level;
 	rte_set_log_type;
 	rte_snprintf;
+	rte_socket_id;
 	rte_strerror;
 	rte_strsplit;
 	rte_sys_gettid;
-- 
2.1.0