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authorjaszha03 <jason.zhang2@arm.com>2019-07-11 20:47:24 +0000
committerDave Barach <openvpp@barachs.net>2019-07-31 13:53:55 +0000
commit5cdde5c25a0e71d923a6d56e5c94e058887f95d8 (patch)
treec54eeb5a91ce67417806fabd1fca8d287993e71d /src/vnet/interface.c
parent9a4e631890a70978d414b4937cb94b50cfd778e6 (diff)
vppinfra: refactor test_and_set spinlocks to use clib_spinlock_t
Spinlock performance improved when implemented with compare_and_exchange instead of test_and_set. All instances of test_and_set locks were refactored to use clib_spinlock_t when possible. Some locks e.g. ssvm synchronize between processes rather than threads, so they cannot directly use clib_spinlock_t. Type: refactor Change-Id: Ia16b5d4cd49209b2b57b8df6c94615c28b11bb60 Signed-off-by: Jason Zhang <jason.zhang2@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Lijian Zhang <Lijian.Zhang@arm.com>
Diffstat (limited to 'src/vnet/interface.c')
-rw-r--r--src/vnet/interface.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index 1702cdc00d1..889ba50cc7a 100644
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -1269,9 +1269,8 @@ vnet_interface_init (vlib_main_t * vm)
sizeof (b->opaque), sizeof (vnet_buffer_opaque_t));
}
- im->sw_if_counter_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
- CLIB_CACHE_LINE_BYTES);
- im->sw_if_counter_lock[0] = 1; /* should be no need */
+ clib_spinlock_init (&im->sw_if_counter_lock);
+ clib_spinlock_lock (&im->sw_if_counter_lock); /* should be no need */
vec_validate (im->sw_if_counters, VNET_N_SIMPLE_INTERFACE_COUNTER - 1);
#define _(E,n,p) \
@@ -1286,7 +1285,7 @@ vnet_interface_init (vlib_main_t * vm)
im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
foreach_combined_interface_counter_name
#undef _
- im->sw_if_counter_lock[0] = 0;
+ clib_spinlock_unlock (&im->sw_if_counter_lock);
im->device_class_by_name = hash_create_string ( /* size */ 0,
sizeof (uword));