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| author |   Sirshak Das <sirshak.das@arm.com> | 2018-10-03 22:53:51 +0000 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-10-19 07:10:47 +0000 |
| commit | 2f6d7bb93c157b874efb79a2d1583a4c368bf89a (patch) | |
| tree | 05dc2867c598cbb8d711f074b4b0eb62dd464f41 /src/plugins/map | |
| parent | bf3443b0f852f5a4c551d12f926defbd047f2161 (diff) | |
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>
Diffstat (limited to 'src/plugins/map')
| -rw-r--r-- | src/plugins/map/map.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/plugins/map/map.h b/src/plugins/map/map.h index 6587a8a455b..1e07b59f762 100644 --- a/src/plugins/map/map.h +++ b/src/plugins/map/map.h @@ -474,7 +474,7 @@ 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 (__sync_lock_test_and_set(map_main.ip4_reass_lock, 1)) {} +#define map_ip4_reass_lock() while (clib_atomic_test_and_set (map_main.ip4_reass_lock)) {} #define map_ip4_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip4_reass_lock = 0;} while(0) static_always_inline void @@ -499,7 +499,7 @@ 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 (__sync_lock_test_and_set(map_main.ip6_reass_lock, 1)) {} +#define map_ip6_reass_lock() while (clib_atomic_test_and_set (map_main.ip6_reass_lock)) {} #define map_ip6_reass_unlock() do {CLIB_MEMORY_BARRIER(); *map_main.ip6_reass_lock = 0;} while(0) int @@ -555,14 +555,14 @@ static inline void map_domain_counter_lock (map_main_t *mm) { if (mm->counter_lock) - while (__sync_lock_test_and_set(mm->counter_lock, 1)) + while (clib_atomic_test_and_set (mm->counter_lock)) /* zzzz */ ; } static inline void map_domain_counter_unlock (map_main_t *mm) { if (mm->counter_lock) - *mm->counter_lock = 0; + clib_atomic_release (mm->counter_lock); } |