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authorSirshak Das <sirshak.das@arm.com>2018-10-03 22:53:51 +0000
committerDamjan Marion <dmarion@me.com>2018-10-19 07:10:47 +0000
commit2f6d7bb93c157b874efb79a2d1583a4c368bf89a (patch)
tree05dc2867c598cbb8d711f074b4b0eb62dd464f41 /src/plugins/ioam/analyse/ip6
parentbf3443b0f852f5a4c551d12f926defbd047f2161 (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/analyse/ip6')
-rw-r--r--src/plugins/ioam/analyse/ip6/node.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/src/plugins/ioam/analyse/ip6/node.c b/src/plugins/ioam/analyse/ip6/node.c
index 902fb9b09ce..7a8d71de93b 100644
--- a/src/plugins/ioam/analyse/ip6/node.c
+++ b/src/plugins/ioam/analyse/ip6/node.c
@@ -256,17 +256,17 @@ ip6_ioam_analyse_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
data0 = ioam_analyse_get_data_from_flow_id (flow_id0);
data1 = ioam_analyse_get_data_from_flow_id (flow_id1);
- while (__sync_lock_test_and_set (data0->writer_lock, 1))
+ while (clib_atomic_test_and_set (data0->writer_lock))
;
data0->pkt_counter++;
data0->bytes_counter += p_len0;
- *(data0->writer_lock) = 0;
+ clib_atomic_release (data0->writer_lock);
- while (__sync_lock_test_and_set (data1->writer_lock, 1))
+ while (clib_atomic_test_and_set (data1->writer_lock))
;
data1->pkt_counter++;
data1->bytes_counter += p_len1;
- *(data1->writer_lock) = 0;
+ clib_atomic_release (data1->writer_lock);
}
else if (error0 == 0)
{
@@ -274,11 +274,11 @@ ip6_ioam_analyse_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
pkts_failed++;
data0 = ioam_analyse_get_data_from_flow_id (flow_id0);
- while (__sync_lock_test_and_set (data0->writer_lock, 1))
+ while (clib_atomic_test_and_set (data0->writer_lock))
;
data0->pkt_counter++;
data0->bytes_counter += p_len0;
- *(data0->writer_lock) = 0;
+ clib_atomic_release (data0->writer_lock);
}
else if (error1 == 0)
{
@@ -286,11 +286,11 @@ ip6_ioam_analyse_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
pkts_failed++;
data1 = ioam_analyse_get_data_from_flow_id (flow_id1);
- while (__sync_lock_test_and_set (data1->writer_lock, 1))
+ while (clib_atomic_test_and_set (data1->writer_lock))
;
data1->pkt_counter++;
data1->bytes_counter += p_len1;
- *(data1->writer_lock) = 0;
+ clib_atomic_release (data1->writer_lock);
}
else
pkts_failed += 2;
@@ -327,12 +327,12 @@ ip6_ioam_analyse_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
{
pkts_analysed++;
data0 = ioam_analyse_get_data_from_flow_id (flow_id0);
- while (__sync_lock_test_and_set (data0->writer_lock, 1))
+ while (clib_atomic_test_and_set (data0->writer_lock))
;
data0->pkt_counter++;
data0->bytes_counter +=
clib_net_to_host_u16 (ip60->payload_length);
- *(data0->writer_lock) = 0;
+ clib_atomic_release (data0->writer_lock);
}
else
pkts_failed++;
@@ -393,13 +393,13 @@ ip6_ioam_analyse_hbh_pot (u32 flow_id, ip6_hop_by_hop_option_t * opt0,
pot_profile = pot_profile_get_active ();
ret = pot_validate (pot_profile, cumulative, random);
- while (__sync_lock_test_and_set (data->writer_lock, 1))
+ while (clib_atomic_test_and_set (data->writer_lock))
;
(0 == ret) ? (data->pot_data.sfc_validated_count++) :
(data->pot_data.sfc_invalidated_count++);
- *(data->writer_lock) = 0;
+ clib_atomic_release (data->writer_lock);
return 0;
}