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/dpdk/device | |
| 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/dpdk/device')
| -rw-r--r-- | src/plugins/dpdk/device/device.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/dpdk/device/device.c b/src/plugins/dpdk/device/device.c index b4001337aca..ea00df25a25 100644 --- a/src/plugins/dpdk/device/device.c +++ b/src/plugins/dpdk/device/device.c @@ -162,7 +162,7 @@ static_always_inline if (PREDICT_FALSE (xd->lockp != 0)) { queue_id = queue_id % xd->tx_q_used; - while (__sync_lock_test_and_set (xd->lockp[queue_id], 1)) + while (clib_atomic_test_and_set (xd->lockp[queue_id])) /* zzzz */ queue_id = (queue_id + 1) % xd->tx_q_used; } @@ -191,7 +191,7 @@ static_always_inline } if (PREDICT_FALSE (xd->lockp != 0)) - *xd->lockp[queue_id] = 0; + clib_atomic_release (xd->lockp[queue_id]); if (PREDICT_FALSE (n_sent < 0)) { |