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authorjaszha03 <jason.zhang2@arm.com>2019-06-12 16:01:19 -0500
committerDave Barach <openvpp@barachs.net>2019-07-30 11:46:19 +0000
commit0455c435af501889de51c79a223883b3c2003b20 (patch)
treec869cd21043469888ee2a23e563e958ce05e3a96 /src/plugins
parentd56550c2b669558aa38d93f44a9a3b31e0b9370f (diff)
vppinfra: conformed spinlocks to use CLIB_PAUSE
Modified test-and-set spin locks to call CLIB_PAUSE () when spinning for code consistency. Decreases the memory bandwidth consumed. Type: fix Change-Id: I1cca4f87f44f23f257c7a35466cd2e7767072f51 Signed-off-by: Jason Zhang <jason.zhang2@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Lijian Zhang <Lijian.Zhang@arm.com>
Diffstat (limited to 'src/plugins')
-rw-r--r--src/plugins/map/map.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/plugins/map/map.h b/src/plugins/map/map.h
index abafb4e21fe..d96c7b88cb7 100644
--- a/src/plugins/map/map.h
+++ b/src/plugins/map/map.h
@@ -22,6 +22,7 @@
#include <vnet/adj/adj.h>
#include <vnet/dpo/load_balance.h>
#include "lpm.h"
+#include <vppinfra/lock.h>
#define MAP_SKIP_IP6_LOOKUP 1
@@ -501,7 +502,7 @@ map_ip4_reass_get(u32 src, u32 dst, u16 fragment_id,
void
map_ip4_reass_free(map_ip4_reass_t *r, u32 **pi_to_drop);
-#define map_ip4_reass_lock() while (clib_atomic_test_and_set (map_main.ip4_reass_lock)) {}
+#define map_ip4_reass_lock() while (clib_atomic_test_and_set (map_main.ip4_reass_lock)) { CLIB_PAUSE (); }
#define map_ip4_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip4_reass_lock = 0;} while(0)
static_always_inline void
@@ -526,7 +527,7 @@ map_ip6_reass_get(ip6_address_t *src, ip6_address_t *dst, u32 fragment_id,
void
map_ip6_reass_free(map_ip6_reass_t *r, u32 **pi_to_drop);
-#define map_ip6_reass_lock() while (clib_atomic_test_and_set (map_main.ip6_reass_lock)) {}
+#define map_ip6_reass_lock() while (clib_atomic_test_and_set (map_main.ip6_reass_lock)) { CLIB_PAUSE (); }
#define map_ip6_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip6_reass_lock = 0;} while(0)
int