diff mbox series

[v7,6/7] net/thunderx: use new API to save cycles on aarch64

Message ID 1569562904-43950-7-git-send-email-gavin.hu@arm.com (mailing list archive)
State Superseded, archived
Delegated to: David Marchand
Headers
Series use WFE for aarch64 |

Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Gavin Hu Sept. 27, 2019, 5:41 a.m. UTC 
  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.hu@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
---
 drivers/net/thunderx/nicvf_rxtx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
diff mbox series

Patch

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);