vppinfra: add atomic macros for __sync builtins

This is first part of addition of atomic macros with only macros for
__sync builtins.

- Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/)
Additionally
- clib_atomic_release macro added and used in the absence
of any memory barrier.
- clib_atomic_bool_cmp_and_swap added

Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b
Original-patch-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/plugins/acl/session_inlines.h b/src/plugins/acl/session_inlines.h
index 6ac5983e086..cd23f390b28 100644
--- a/src/plugins/acl/session_inlines.h
+++ b/src/plugins/acl/session_inlines.h
@@ -410,7 +410,7 @@ acl_fa_deactivate_session (acl_main_t * am, u32 sw_if_index,
     }
 
   sess->deleted = 1;
-  clib_smp_atomic_add (&am->fa_session_total_deactivations, 1);
+  clib_atomic_fetch_add (&am->fa_session_total_deactivations, 1);
   clib_mem_set_heap (oldheap);
 }
 
@@ -432,7 +432,7 @@ acl_fa_put_session (acl_main_t * am, u32 sw_if_index,
   vec_validate (pw->fa_session_dels_by_sw_if_index, sw_if_index);
   clib_mem_set_heap (oldheap);
   pw->fa_session_dels_by_sw_if_index[sw_if_index]++;
-  clib_smp_atomic_add (&am->fa_session_total_dels, 1);
+  clib_atomic_fetch_add (&am->fa_session_total_dels, 1);
 }
 
 always_inline int
@@ -571,7 +571,7 @@ acl_fa_add_session (acl_main_t * am, int is_input, int is_ip6,
   vec_validate (pw->fa_session_adds_by_sw_if_index, sw_if_index);
   clib_mem_set_heap (oldheap);
   pw->fa_session_adds_by_sw_if_index[sw_if_index]++;
-  clib_smp_atomic_add (&am->fa_session_total_adds, 1);
+  clib_atomic_fetch_add (&am->fa_session_total_adds, 1);
   return sess;
 }