[dpdk-dev] [PATCH v5 7/8] net/thunderx: use new API to save cycles on aarch64

[Gavin Hu]

Use the new API to wait in low power state instead of continuous
polling to save CPU cycles and power.

Signed-off-by: Gavin Hu <gavin...@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.w...@arm.com>
---
 drivers/net/thunderx/nicvf_rxtx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/thunderx/nicvf_rxtx.c 
b/drivers/net/thunderx/nicvf_rxtx.c
index 1c42874..16f34c6 100644
--- a/drivers/net/thunderx/nicvf_rxtx.c
+++ b/drivers/net/thunderx/nicvf_rxtx.c
@@ -385,8 +385,7 @@ nicvf_fill_rbdr(struct nicvf_rxq *rxq, int to_fill)
                ltail++;
        }
 
-       while (__atomic_load_n(&rbdr->tail, __ATOMIC_RELAXED) != next_tail)
-               rte_pause();
+       rte_wait_until_equal_relaxed_32(&rbdr->tail, next_tail);
 
        __atomic_store_n(&rbdr->tail, ltail, __ATOMIC_RELEASE);
        nicvf_addr_write(door, to_fill);
-- 
2.7.4