diff options
| 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/ioam/export-common | |
| 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/ioam/export-common')
| -rw-r--r-- | src/plugins/ioam/export-common/ioam_export.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/plugins/ioam/export-common/ioam_export.h b/src/plugins/ioam/export-common/ioam_export.h index 36d71d26716..6e640951802 100644 --- a/src/plugins/ioam/export-common/ioam_export.h +++ b/src/plugins/ioam/export-common/ioam_export.h @@ -436,11 +436,11 @@ ioam_export_process_common (ioam_export_main_t * em, vlib_main_t * vm, */ for (i = 0; i < vec_len (thread_index); i++) { - while (__sync_lock_test_and_set (em->lockp[thread_index[i]], 1)) + while (clib_atomic_test_and_set (em->lockp[thread_index[i]])) ; em->buffer_per_thread[thread_index[i]] = vec_pop (vec_buffer_indices); - *em->lockp[thread_index[i]] = 0; + clib_atomic_release (em->lockp[thread_index[i]]); } /* Send the buffers */ @@ -479,7 +479,7 @@ do { \ from = vlib_frame_vector_args (F); \ n_left_from = (F)->n_vectors; \ next_index = (N)->cached_next_index; \ - while (__sync_lock_test_and_set ((EM)->lockp[(VM)->thread_index], 1)); \ + while (clib_atomic_test_and_set ((EM)->lockp[(VM)->thread_index])); \ my_buf = ioam_export_get_my_buffer (EM, (VM)->thread_index); \ my_buf->touched_at = vlib_time_now (VM); \ while (n_left_from > 0) \ |